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Geometry Of Silicic Dikes Beneath The Inyo Domes, California, Jonathan H. Fink

Geology Faculty Publications and Presentations

Structural geologic evidence in the vicinity of the Inyo Domes indicates that the youngest extrusive products were erupted from a silicic dike that divided into at least three segments which underwent up to 30° of clockwise rotation as they neared the surface. The geometry of ground cracks, explosion craters, and surface structures on the domes suggest that the dike may have propagated laterally from a source beneath Mammoth Mountain, with both the overall-dike and the individual segments rising as they moved northward. Structural evidence and tephrochronology also imply that the actual vents may have migrated northward along individual dike segments …

Fertilizer Use Changes In The U.S. And Kentucky, Monroe Rasnake, Dan Kirkland

Soil Science News and Views

The use of inorganic fertilizers for crop production is perhaps the most successful educational program ever attempted by Land-Grant Colleges, the Tennessee Valley Authority and other agencies. Not many producers in the United States or the world will attempt to grow a crop without the use of fertilizers. In fact, some producers over fertilize and in recent years, the educational program has been aimed at teaching producers to limit fertilizer applications to what is actually needed based on soil tests and cropping conditions.

Characterizing Soil Deformation By Direct Measurement Within The Profile, Randall K. Wood, Larry G. Wells

Biosystems and Agricultural Engineering Faculty Publications

A unique feature of the University of Kentucky soil bin enables deformation to be characterized by studying a cross-sectional soil profile grid pattern. Modular sections of the bin are laterally removed to expose the cross-section after passes of a pneumatic tire.

The measured displacements of the grid points were converted to values of volumetric strain and then compared to soil density as measured by a dual probe gamma-ray density gauge following tests at various soil conditions. Final soil bulk density determinations using the two methods were not statistically different..

Innovative Transfer And Exchange Plans, Glenn E. Porzak

Colorado Water Issues and Options: The 90's and Beyond: Toward Maximum Beneficial Use of Colorado's Water Resources (October 8)

36 pages (includes maps).

Contains footnotes (page 32).

Voluntary Approaches To Basinwide Water Management, Neil S. Grigg

Colorado Water Issues and Options: The 90's and Beyond: Toward Maximum Beneficial Use of Colorado's Water Resources (October 8)

13 pages (includes illustration).

Contains references (page 11).

Interstate Transfers Of Water: Many A Slip ‘Twixt The Cup And The Lip, Howard Holme

Colorado Water Issues and Options: The 90's and Beyond: Toward Maximum Beneficial Use of Colorado's Water Resources (October 8)

44 pages (includes maps and tables).

Contains 6 pages of footnotes.

Engineering And Hydrologic Issues In Changing Water Uses, Leonard Rice

Colorado Water Issues and Options: The 90's and Beyond: Toward Maximum Beneficial Use of Colorado's Water Resources (October 8)

26 pages (includes maps, charts and illustrations).

Contains references (page 18).

A Market-Based Approach To Water Rights: Evaluating Colorado’S System, Stephen F. Williams

Colorado Water Issues and Options: The 90's and Beyond: Toward Maximum Beneficial Use of Colorado's Water Resources (October 8)

33 pages.

Contains footnotes.

Agenda: Colorado Water Issues And Options: The 90'S And Beyond: Toward Maximum Beneficial Use Of Colorado's Water Resources, University Of Colorado Boulder. Natural Resources Law Center, Colorado Water Resources Research Institute. Cooperative Extension Service

Colorado Water Issues and Options: The 90's and Beyond: Toward Maximum Beneficial Use of Colorado's Water Resources (October 8)

Presented by Natural Resources Law Center, University of Colorado School of Law and Cooperative Extension Service, Colorado Water Resources Research Institute, Colorado State University.

Conference organizers and/or speakers included University of Colorado School of Law professors Lawrence J. MacDonnell, David H. Getches and Stephen F. Williams.

The conference theme is "Toward Maximum Beneficial Use of Colorado's Water Resources." The purpose of the conference is to provide a forum for public discussion of Colorado's system of water law and administration and to make recommendations for future action.

Administering Colorado’S Water: A Critique Of The Present Approach, Clyde O. Martz, Bennett W. Raley

Colorado Water Issues and Options: The 90's and Beyond: Toward Maximum Beneficial Use of Colorado's Water Resources (October 8)

41 pages.

Contains footnotes.

Wasted Water: The Problems And Promise Of Improving Efficiency Under Western Water Law, Steven J. Shupe

Colorado Water Issues and Options: The 90's and Beyond: Toward Maximum Beneficial Use of Colorado's Water Resources (October 8)

61 pages.

Includes footnotes (pages 49-56).

Factors Affecting Colorado’S Water Future: Summary Of Results Of Survey Conducted April 1985, Lawrence J. Macdonnell

Colorado Water Issues and Options: The 90's and Beyond: Toward Maximum Beneficial Use of Colorado's Water Resources (October 8)

7 pages.

Nontributary Ground Water: A Continuing Dilemma, William A. Paddock

Colorado Water Issues and Options: The 90's and Beyond: Toward Maximum Beneficial Use of Colorado's Water Resources (October 8)

47 pages.

Contains 2 pages of footnotes.

Meeting Colorado’S Water Requirements: An Overview Of The Issues, David H. Getches

Colorado Water Issues and Options: The 90's and Beyond: Toward Maximum Beneficial Use of Colorado's Water Resources (October 8)

43 pages (includes tables and map).

Includes 3 pages of footnotes.

Seismic Modelling And Paleoceanography At Dsdp Site 574, Larry A. Mayer, Tom H. Shipley, Fritz Theyer, Roy H. Wilkens, Edward L. Winterer

Affiliate Scholarship

The analysis of high-resolution watergun seismic profiles collected in support of DSDP Leg 85 drilling reveals sev eral major, regionally traceable reflectors that can be correlated over more than 360,000 km2 in the central equatorial Pacific. Synthetic seismograms generated from shipboard physical property measurements (carefully corrected to in situ values) for DSDP Site 574 show excellent agreement with the field records; the agreement suggests that the traveltime to-depth conversion is accurate and permits the precise (± 5 m) location of reflectors in the cored section. The reflectors can be dated (±0.5 Ma) as follows: Orange, 21.5 to 22.5 Ma; Yellow, …

Fall Application Of Fertilizer, Kenneth L. Wells

Soil Science News and Views

Fall application of fertilizer offers the advantages of (1) getting a job done which can delay early spring planting, (2) being able to get over fields when they are usually drier and less likely to compact, and (3) more often getting a price break from fertilizer dealers. Several crop-related advantages also apply and are discussed below. In terms of nutrients which can be fall applied, phosphate and potash are well adapted, Both these nutrients react strongly enough with soil to resist overwinter leaching. and the requirements for next year's production can safely be applied in the fall. Fall use of …

Lineament Analysis And Tectonic Interpretation For The Central Tharsis Region, Mars, Robert C. Anderson

OES Theses and Dissertations

Lineament studies conducted for the Central Tharsis Region of Mars (JOON and JOOS latitude; 450w to 157.50W longitude) indicate two major events controlled the formation of the Tharsis Dome: 1) a pre-Tharsis fracture system consisting of North-West (3150) trending fractures; and 2) a Tharsian fracture system containing North-South (355°) and East-West (275°) trending fractures. The North-West (3150) trending fractures represent a crustal weakness zone which controlled the early formation of the Tharsis Dome. Analytical studies suggest four centers of uplift: 1) 6°N, 124°W; 2) 0.5°N, 114°W; 3) 5°S, 105°W; and 4) 7°S, 104°W. Each of these uplifting centers is associated …

Conodont Biostratigraphy Of The Cambrian-Ordovician Boundary Interval In The Northern Shenandoah Valley Of Virginia, U.S.A., Randall C. Orndorff

OES Theses and Dissertations

Conodonts collected from two measured sections in the northern Shenandoah Valley of Virginia indicate that locally the Cambrian-Ordovician boundary is within the upper part of the Conococheague Formation and that the Conococheague-Stonehenge formational contact as defined in this study, is diachronous in relation to the boundary. Using the generally accepted definition of the CambrianOrdovician boundary as at the base of the trilobite Missisguoia Zone or within the conodont Hirsutodontus hirsutus Subzone of the Cordylodus proavus Zone, it is found here that the boundary is 230 ft (70 m) below the formational contact at the Narrow Passage Creek section. Several North …

Depositional Model For The Auriferous Gravels In The Payan Mining District Department Of Narino, Columbia, South America, Jim R. Garrett

OES Theses and Dissertations

Unlike placer deposits in arid and semi-arid environments where gold concentration is closely tied to the position of the bedrock, Payan placer deposits have no association with bedrock. Gold concentration values show highest gold concentrations occur at the contact of a coarse sand unit and its underlying gravel unit. Comparisons of the size and shape distributions of gold grain populations with their associated black sand populations indicate the gold and black sand were not deposited in hydraulic equilibrium. The mean size of each gold population is consistently coarser than the mean size of its associated black sand population despite the …

Leachate Monitoring In Naturally Saline Groundwater Chesapeake Landfill Chesapeake Virginia, T. Britt Mcmillan

OES Theses and Dissertations

Groundwater chemistry around the Chesapeake municipal landfill was monitored over a one year period. Ten sample sites as well as two surface water sites were used to monitor water quality. Two wells, one at 3 m and the other at 10 m were located at each site. Surface water samples were taken from the Elizabeth River, north of the landfill, and a tidal channel, west of the landfill. Seven groundwater sites were downgradient of the landfill and three sites were upgradient (control sites).

The landfill overlies a tidal marsh, approximately 100 m south of the intracoastal waterway (Elizabeth River). Dredge …

Depositional Environments Of Late Precambrian Sediments From Liberia, Sierra Leone, And Senegal, West Africa, Alfred W. Magee Iii

OES Theses and Dissertations

Field and hand sample descriptions were supplemented with petrographic and textural analyses derived from thin sections, and scanning electron microscopy (SEM) to determine environments of deposition for the late Precambrian Gibi Mountain Formation, Liberia, Tabe

Formation, Sierra Leone, and the basal Mali Group, Senegal, West Africa.

The Gibi Mountain Formation consists of a glaciomarine tillite, marine laminites with dropgrains, and shallow water arkoses. A shale facies remains unresolved in origin.

The Tabe Formation is composed of three members: Tibai, Dodo, and Taban. The Tibai Member contains a glaciomarine tillite deposited in a shallow shelf marine environment, marine laminites, and shallow …

Role And Responsibilities Of Agencies For Wildlife Damage Control, Hal S. Atkinson Jr.

Wildlife Damage Management Conference

The wildlife resources of the State belong to the people of the state as a whole. The Wildlife Resources Commission is charged with the stewardship of these resources and is empowered by general statute to promulgate those regulations deemed necessary to accomplish this charge.

Usda Forest Service Role In Wildlife Damage Control, Hugh C. Black

Wildlife Damage Management Conference

Wildlife damage control is an important objective of resource management on the 191 million acres of National Forest System (NFS) lands administered by the USDA Forest Service. Policy on wildlife damage control is based on the USDA Policy on Fish and Wildlife (Secretary's Memorandum 9500-3, July 1983). The objective of wildlife damage control is to reduce damage and loss by wildlife on all NFS lands to levels consistent with management objectives. Control measures are only undertaken when and where necessary to realize wildlife management objectives and to prevent serious damage to public or private property and natural resources. Because of …

Specialty Vs. Farm Fertilizers For Turf, A. J. Powell Jr.

Soil Science News and Views

Professional golf course superintendents, lawn care supervisors and groundskeepers often spend 3-5 times more for a slow release, urea based, speciality fertilizer rather than urea or ammonium nitrate. Most speciality fertilizers contain 1/5 to 1/3 of its total N in insoluble or slow release form. This slow release nitrogen is included to Cll decrease the number of applications necessary (2) reduce burn potential (3) give uniform rather than a flush of growth and (4) increase N efficiency by reducing leaching and volatilization loss.

A Gravity Investigation Of Mountain Flank Thrusting And Normal Faulting, Madison And Tobacco Root Ranges, Montana, Stephen Thomas Wigger

Masters Theses

Gravity modeling of west-dipping, Laramide mountain flank thrusts which involve Archean metamorphic rocks in the western Tobacco Root and northern Madison Ranges supports the idea that these thrusts are gently dipping.

The thrusts provided a favorable location for normal faulting during Neogene extension. The Neogene faults on the eastern portions of the Madison and Jefferson Basins are interpreted to be listric, and merge with the Laramide thrusts. Basin development occurred along a series of such faults, which dropped hanging wall blocks of the thrust sheets to progressively greater depths. The maximum depth of the Madison basin, near Ennis, was found …

Modeling Of Overland Flow By The Diffusion Wave Approach, Rao S. Govindaraju, S. E. Jones, M. L. Kavvas

KWRRI Research Reports

One of the major issues of present times, i.e. water quality degradation and a need for precise answers to transport of pollutants by overland flow, is addressed with special reference to the evaporator pits located adjacent to streams in the oil-producing regions of Eastern Kentucky. The practical shortcomings of the state-of-the-art kinematic wave are discussed and a new mathematical modeling-approach for overland flows using the more comprehensive diffusion wave is attempted as the first step in solving this problem. A Fourier series representation of the solution to the diffusion wave is adopted and found to perform well. The physically justified …

Considerations In No-Till Small Grain Production, David C. Ditsch, John H. Grove, Lloyd W. Murdock, James H. Herbek

Soil Science News and Views

Small grains have become an important component of many crop rotations in Kentucky. Seedbed preparation has typically involved various degrees of tillage in which much of the residue from the previous crop is buried. Under such conditions, a field may be vulnerable to severe soil loss during periods of heavy rainfall until the plants have produced enough vegetative growth to cover the soil surface. Eliminating tillage in small grain production would not only reduce soil loss but also reduce labor cost and increase the timeliness of planting. Interest in no-till small grain production is growing. One survey reports that in …

Development Of General Guidelines For The Planning Of Stormwater Management Facilities: Application To Urban Watersheds In Kentucky, Lindell E. Ormsbee, Vincent T. Reinert

KWRRI Research Reports

This report provides a planning methodology and a design tool to help determine the appropriate location and volume of detention basins required to control critical storm events. The technique involves using watershed characteristics including the SCS curve number, time of concentration, peak outflow rate, watershed area and the storage recurrence interval to help predict these detention volumes.

Historical rainfall records are used in a revised continuous simulation program (SYNOP, Hydroscience, Inc,) to determine the rainfall excess from which runoff hydrographs are produced. Various combinations of the watershed characteristics were input and computer analyses done to obtain the required data base. …

Subsurface Stratigrapy And Sedimentologic Control On The Productive Middle Devonian Age Richfield Member Of The Lucas Formation In The Michigan Basin, Sukru Nail Apak

Masters Theses

The depositional system of the Middle Devonian Richfield Member of Lucas Formation in the Michigan Basin was delineated using well logs, cores, drillers' records, and the literature. The Richfield Member was deposited in Sabkha and lagoonal environments characterized by cycles of anhydrite, dolomite, and limestone. Seven significant productive dolomitic zones, interbedded with anhydrite and limestone can be correlated throughout the study area. These zones change laterally to anhydrite towards the west flank and to dense limestone towards the east flank of the basin. Post-depositional diagenetic history of the Richfield was established with the aid of scanning electron microscopy and electron …

A Seismic Study Of An Impact Feature In Cass County, Michigan, Mancheol Suh

Masters Theses

A geophysical investigation, including a seismic study, of the subsurface structure of the Calvin-28 oil field, Cass County, Michigan, indicates that the structure's origin may be related to an impact event. The structural closures in the time structure maps and drilling results both show a central uplift. The fault system in the Trempealeau Formation shows a structure similar to other proven astroblemes. Undisturbed layers just beneath the central uplift also provide evidence of an impact structure. The result of mathematical modeling of the central uplift under the assumption that the structure is an impact structure corresponds well with the drilling …